College of Geomatics Shandong University of Science and Technology Qingdao 266590 ChinaLand Satellite Remote Sens-ing Application Center Ministry of Natural Resources of P.R.China Beijing 100048 China;
College of Geomatics Shandong University of Science and Technology Qingdao 266590 ChinaLand Satellite Remote Sens-ing Application Center Ministry of Natural Resources of P.R.China Beijing 100048 China;
Land Satellite Remote Sens-ing Application Center Ministry of Natural Resources of P.R.China Beijing 100048 China;
Key Laboratory of Space Active Opto-electronics Technology Chinese Academy of Sciences Shanghai 200083 China;
Land Satellite Remote Sens-ing Application Center Ministry of Natural Resources of P.R.China Beijing 100048 China;
Land Satellite Remote Sens-ing Application Center Ministry of Natural Resources of P.R.China Beijing 100048 ChinaCollege of Mapping and Geomatics Lanzhou Jiaotong University Lanzhou 730070 China;
GF-7; quality control; satellite laser altimetry; laser footprint image; cloud detection; stability analysis of laser pointing angle;